Small dogs pack a big personality, and now they have a bark collar to match! The NanoBark™ Collar is the world’s smallest, compact and lightweight bark collar. With the size and weight of your favourite smartwatch, NanoBark reminds your dog that, no, he doesn’t need to bark at the postman while you’re at work. Built to withstand a splash or a rugged road trip, this innovative dog bark collar is perfect for life at home and on the go. Simply put, bark collars just got a major upgrade.